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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Chen, Xiaohui
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2022Effect of sandblasting with fluorapatite glass-ceramic powder and chemical primers/adhesives on shear bond strength of indirect repairing composite to zirconiacitations
- 2020Fluorapatite Glass-Ceramics: A New Sandblasting Approach for Zirconia Repair
- 2019Preliminary study of hydroxyapatite particles air abrasive blasting on Mg-4Zn-0.3Ca surfacecitations
- 2016Design and Synthesis of New Translucent, High Strength Leucite Glass-Ceramics
- 2016Surface properties of tricalcium phosphate and hydroxyapatite resin composites
- 2014Leucite Glass Ceramics
- 2014The Retarding Effect of Zinc Oxide on Dissolution and Apatite Formation of a Fluoride Containing Bioactive Glass
- 2014'Smart' acid-degradable zinc-releasing silicate glassescitations
- 2014Low-sodium Bioactive Glass Coatings for Titanium Implants by Grit Blasting
- 2013Remineralisation Study of a Nano-sized Hydroxyapatite and Fluoride Containing Toothpaste
- 2013Reduced wear of enamel with novel fine and nano-scale leucite glass-ceramicscitations
- 2013Crystallization of high-strength nano-scale leucite glass-ceramicscitations
- 2012Wear characteristics of fine and nano-scale high-strength leucite glass-ceramics
- 2011Crystallization and flexural strength optimization of fine-grained leucite glass-ceramics for dentistrycitations
- 2010Development and testing of multi-phase glazes for adhesive bonding to zirconia substrates
- 2010Crystallization of high-strength fine-sized leucite glass-ceramicscitations
- 2010Synthesis of nano-sized Leucite Glass-ceramics
- 2010Wear Characteristics of an Experimental High-Strength Fine-Sized Leucite Glass-Ceramic
- 2010Optimization of Novel Leucite Glass-ceramics
- 2009Effect of Glass Powder Size on Leucite Glass-Ceramic Crystallisation
- 2009Control of ceramic microstructure
- 2007Microstructure and Thermal Expansion Properties of Some Leucite Glass-Ceramics
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conferencepaper
Wear characteristics of fine and nano-scale high-strength leucite glass-ceramics
Abstract
Objectives: To test the wear characteristics of experimental high-strength fine and nano-scale leucite glass-ceramics against human enamel.<br/>Methods: Human enamel pins (Med.Ethics REC:06/Q0603/98) were wear tested against disc samples (n=12) of a commercial control (Ceramco-3, Dentsply) and experimental fine and nano-scale leucite glass-ceramics. Specimens were loaded (13.5N, MTS-Bionix-858 system) followed by a lateral excursion movement and a controlled cuspal contact time (0.25s) to complete the simulated masticatory cycles (300,000, 2Hz) under continuous flow of deionised water (37°C). Superimposition of digitised test surfaces before and after wear testing by non-contact 3D profilometry (Proscan-2000, Scantron) provided wear quantification data (volume/ mean-height loss) utilising the dedicated software and a novel protocol. Glass-ceramic disc/ tooth specimen groups were statistically compared (one-way ANOVA-on-ranks, p<0.05). Wear tested specimens were examined using SEM and Profilometry. Indicative surface roughness (Ra)/ waviness measurements (500 x, y line scans/specimen) were also performed on a glass-ceramic disc/tooth pair per group.<br/><br/>Results: Volume and mean-height loss results are listed below. The Ceramco-3 group exhibited distinct and patterned wear profile with parallel grooves. Less or non-oriented wear profile was exhibited by the experimental groups. All recorded Ra and wave-height values for the experimental disc/tooth groups were lower than the Ceramco-3 group.<br/><br/>Conclusions: The experimental glass-ceramics exhibited significantly (p<0.05) lower antagonistic enamel wear when compared to a commercial control. Development of the fine and nano-scale leucite materials tested may support their use to achieve reduced rates of enamel loss.<br/><br/>This research was carried out in partial fulfilment of Dr. Theocharopoulos' PhD degree in Institute of Dentistry, Barts and The London SMD, QMUL 2011.